keyEncipherment Specifies an acceptable key usage extension that must be present in the signing certificate. Syntax Reference_Syntax.keyEnciphement = “Yes | No | empty_string“ Values Type Values String • Yes (default) The value must be set in the certificate for it to be acceptable. • No The value must not be set in the certificate for it to be acceptable. • “” If unspecified or specified as an empty string, the certificate’s attribute is disregarded. Applies to Model Object Form Model keyUsage Version XFA 2.5